2005
DOI: 10.1002/cjg2.781
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Preliminary Simulation Research of Direct Radiative Forcing of Mineral Dust Aerosol Over East Asia Region

Abstract: To research the direct radiative effect of dust aerosols over East Asia region, a dust emission scheme, a transport model and a radiative scheme of dust aerosol have been added into Regional Climate Model Version 3(RegCM3). Based on the simulation between March 2001 to February 2002, it is found that Northwest China and Mongolia are the main dust sources of East Asia, where the emission rates exceed 1µg/(m 2 ·s) with the maximum value of 90µg/(m 2 ·s). The maximum column burden of dust aerosol is about 5g/m 2 … Show more

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Cited by 10 publications
(7 citation statements)
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“…The change of rainfall caused by dust helps to offset the trend of increased wetness in southern China and increased dryness in northern China in recent years. Their results are supported by many other works [3][4][5] . A so-called "elevated heat pump" (EHP) mechanism exists in both Southern Asia [6] and West Africa [7] , which indicates that the lifted absorbing dust layer can heat the middle/upper troposphere and strengthen monsoon circulation in India/West Africa monsoon regions [8] .…”
Section: Introductionsupporting
confidence: 88%
“…The change of rainfall caused by dust helps to offset the trend of increased wetness in southern China and increased dryness in northern China in recent years. Their results are supported by many other works [3][4][5] . A so-called "elevated heat pump" (EHP) mechanism exists in both Southern Asia [6] and West Africa [7] , which indicates that the lifted absorbing dust layer can heat the middle/upper troposphere and strengthen monsoon circulation in India/West Africa monsoon regions [8] .…”
Section: Introductionsupporting
confidence: 88%
“…Furthermore, the transported Asian dust aerosol might rebuild the Earth system energy balance [ Lau et al ., ; Sun et al ., ]. By scattering and absorption of solar radiation and by absorption of infrared radiation, the regional mean direct radiative forcing (DRF) by dust was estimated to range from −6.85 to 0.94 W m −2 at the top of the atmosphere (TOA) and −10.61 to −1.50 W m −2 at the terrestrial surface over East Asia [ Miller et al ., ; Wu et al ., , ; Han et al ., ; Zhang et al ., ]. As a result of the radiative effects of surface cooling and atmospheric heating by dust, the East Asian temperature and precipitation could also be modified.…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, numerical modeling is an indispensable tool which was developed to predict the spatial and temporal of dust loading together with detailed physical and chemical properties (Gong et al, 2003;Liu et al, 2003;Shao et al, 2003), and many efforts have been made to enhance the reasonability of simulation (Shao, 2001;Shao et al, 2002;Park and In, 2003). For the direct radiative effect of dust, Wu et al (2005) has used Regional Climate Model with a transport model and a radiative scheme of dust aerosol to simulate the direct radiative forcing of mineral dust over East Asia. The results show that the regional average values are quite variable and are obviously larger in spring than those in other seasons.…”
Section: Introductionmentioning
confidence: 99%